EP0665936B1 - Light fitting with oblong lighting means and reflectors - Google Patents

Light fitting with oblong lighting means and reflectors Download PDF

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Publication number
EP0665936B1
EP0665936B1 EP93923470A EP93923470A EP0665936B1 EP 0665936 B1 EP0665936 B1 EP 0665936B1 EP 93923470 A EP93923470 A EP 93923470A EP 93923470 A EP93923470 A EP 93923470A EP 0665936 B1 EP0665936 B1 EP 0665936B1
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EP
European Patent Office
Prior art keywords
reflector
ceiling
reflector surfaces
cage
lamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP93923470A
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German (de)
French (fr)
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EP0665936A1 (en
Inventor
Karin Pesau
Georg Kempter
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Zumtobel Lighting GmbH Austria
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Zumtobel Lighting GmbH Austria
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Publication of EP0665936A1 publication Critical patent/EP0665936A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the invention relates to a lamp with at least one elongated lamp with at least two reflectors arranged above it and a preferably partially transparent reflector basket arranged under the two reflectors, said basket covering the lamp (s).
  • Luminaires with partially translucent reflecting baskets in particular are characterized by a particularly pleasant lighting effect, i. h, the spatial impression for a viewer is bright, although the illuminance levels are relatively low.
  • the characteristic is based on daylight.
  • Such lights are usually designed as recessed ceiling lights, d. That is, such lights can only be used in conjunction with suspended ceiling systems. (Suspended ceilings require rooms with a certain minimum height).
  • Luminaires of this type have already become known, which can be attached to ceilings or suspended.
  • a disadvantage of all these lamps is that the two reflectors arranged above the lamp (s) are designed in such a way that they are depicted on the ceiling as disturbing shadows.
  • V-shaped reflector walls connect to the ceiling at a right angle.
  • the resulting jump-like or stair-shaped heel creates a shadow on the ceiling.
  • the reflector basket is made partially transparent to the light, part of the light passes through this reflector, is preferably scattered, and thus the luminance remains below the value of the illuminant (s) used and thus prevents glare to an observer.
  • the object of the invention is to design a lamp of the type mentioned in such a way that it can be attached directly to ceilings and the pleasant lighting effect is maintained without forming disturbing shadows. Furthermore, this luminaire should also be able to be used in rooms with VDU workstations.
  • the invention is characterized by the technical teaching of claim 1.
  • V-shaped profiled reflector surfaces have approximately a bird's wing-like profile in the front view, their outer longitudinal front edges extending into the vicinity of ceiling elements to which the lamp is fastened in such a way that the transition region of the reflector surfaces clings tangentially to the surface of the ceiling elements in the area of the outer longitudinal end edges.
  • the outer longitudinal end edge comes very close to the ceiling elements.
  • the tangential approach of the V-shaped reflector to the ceiling must be stepless, i.e. without step-like heel at the long edge.
  • the tangential nestling of the transition area of the reflector surfaces in the area of the outer longitudinal end edge to the ceiling elements also makes it unnecessary to maintain a constant height of the longitudinal end edge.
  • the reflector surfaces according to the invention are therefore concavely curved.
  • An advantageous effect of the invention is that a lamp with the reflectors designed according to the invention is integrated harmoniously on the ceiling. This enhances the pleasant, calm, daylight-like lighting effect of the lamp.
  • the inventive design of the reflector contour also lightens the ceiling and thus improves the efficiency. (Light rays not only hit the reflectors, but also directly on the ceiling).
  • the reflector surfaces are designed to be continuously curved and to extend from the inner longitudinal end edges to the outer longitudinal end edges lying against the ceiling elements with a constant curvature.
  • the reflector surfaces are continuously curved and can have a relatively steep curvature in the vicinity of the reflector cage, which transitions into a curve of lesser curvature while overcoming a relatively small radius.
  • transition area of the longitudinal end edges near the ceiling to the ceiling elements can be designed differently.
  • the tangent to the reflector surfaces in the area close to the ceiling conforms to the ceiling surface, i. that is, there is a tangential transition of the reflector surface into the ceiling surface.
  • the tangent to the reflector surfaces in the area near the ceiling forms an angle to the ceiling surface itself.
  • the lamp in a first embodiment of the lamp according to FIGS. 1 and 2, it essentially consists of a reflector basket 2, which is covered on the end face by basket front parts 1, 1 '.
  • the reflector basket 2 is preferably made of perforated sheet metal and backed with a matt or opal film, and can be designed to be translucent, partially translucent or opaque.
  • the reflector basket 2 is fastened to a mounting rail 3, the lamp operating devices being able to be attached either in a tub part or advantageously on the mounting rail.
  • the sockets for the one or more lamps are attached to the respective front part 1.1 'of the basket.
  • the lamps are thus covered by the reflector basket 2.
  • the reflector basket 2 is advantageously fastened to the lamp by means of the mounting rail 3, the mounting rail 3 forming part of the reflector surfaces 4, 4 'according to the invention.
  • the tub part 12 is usually screwed onto the ceiling, the ceiling in the exemplary embodiment being formed from plate-shaped ceiling elements 5-11.
  • the reflector surfaces 4, 4 'and also the reflector surfaces 15 and 16 according to FIGS. 3 and 4 are curved approximately concavely and form an approximately V-shaped profile in the manner of a bird's wing in the end view.
  • each reflector surface 4, 4 'nestles seamlessly against the surface of the ceiling elements 5-11. That is, a tangent 22 in this area on the reflector surface 4 is parallel to the surface of the ceiling elements 5 themselves.
  • FIGS. 1 and 2 show that instead of the relatively strong curvature of the reflector surfaces 4, 4 'in FIGS. 1 and 2, a steeper curvature 20 can also be provided for the reflector surfaces 16, the transition region 21 making an angle in the direction of the surface of the ceiling elements forms.
  • the Tangenete 22 at the region of the reflector surfaces 16 near the ceiling forms an angle 23 to the surface of the ceiling elements 5-11.
  • the reflector surfaces 15 can also be discontinuously curved, that is, starting from the inner longitudinal end edges, the reflector surfaces 15 initially form a relatively steep curvature 17 which, while overcoming a radius in the region of the bend 19, changes into a flatter curvature 18 which either tangentially according to the embodiment of Figure 2 or forming an angle according to the embodiment of Figure 3 can pass into the ceiling area.
  • the transition from the reflector contour to the ceiling does not have to be as smooth as in FIGS. 1 and 2, but it can also be erratic or the reflector can be kinked (FIGS. 3 and 4). However, this is in contrast to the desired pleasant lighting effect.
  • specially shaped reflectors are conceivable to achieve special lighting effects.
  • Figure 5 shows the lamp in an embodiment with a round (oval) base, which has the advantage over a rectangular shape that round lights can be used in an architecturally appealing form regardless of the shape of the room.
  • the luminaire according to the invention can also be used as a wall luminaire - shorter illuminants are preferably used for this (e.g. 18 W fluorescent lamp with 590 mm length or compact fluorescent lamps 36 W with 415 mm or 40 W or 55 W with 535 mm length).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Catching Or Destruction (AREA)

Abstract

A lamp with at least one oblong means of lighting is mounted in a reflector cage which is attached beneath curved reflector surfaces. In order to attach the lamp directly to a ceiling, the reflector surfaces are given a roughly V-shaped front-view profile and their outer longitudinal leading edges extend to proximity with ceiling elements to which the lamp is fastened.

Description

Die Erfindung betrifft eine Leuchte mit wenigstens einem langgestreckten Leuchtmittel mit wenigstens zwei über diesem/ diesen angeordneten Reflektoren und einem vorzugsweise teillichtdurchlässigen, unter den beiden Reflektoren angeordneten Reflektorkorb, wobei dieser das/ die Leuchtmittel überdeckt.The invention relates to a lamp with at least one elongated lamp with at least two reflectors arranged above it and a preferably partially transparent reflector basket arranged under the two reflectors, said basket covering the lamp (s).

Leuchten dieser Art sind bekannt. Insbesondere Leuchten mit teilweise lichtdurchlässigen Refklektorkörben zeichnen sich durch eine besonders angenehme Lichtwirkung aus, d. h, der Raumeindruck für einen Betrachter ist hell, obwohl die Beleuchtungsstärken relativ niedrig sind. Die Charakteristik lehnt sich am Tageslicht an. Meist werden derartige Leuchten als Deckeneinbauleuchten ausgebildet, d. h., daß derartige Leuchten nur in Verbindung mit abgehängten Deckensystemen verwendet werden können. (Abgehängte Decken erfordern Räume mit einer gewissen Mindesthöhe).Lights of this type are known. Luminaires with partially translucent reflecting baskets in particular are characterized by a particularly pleasant lighting effect, i. h, the spatial impression for a viewer is bright, although the illuminance levels are relatively low. The characteristic is based on daylight. Such lights are usually designed as recessed ceiling lights, d. That is, such lights can only be used in conjunction with suspended ceiling systems. (Suspended ceilings require rooms with a certain minimum height).

Es sind derartige Leuchten bereits bekannt geworden, die auf Decken angebaut oder auch abgependelt aufgehängt werden können. Nachteilig bei allen diesen Leuchten ist, daß die beiden über dem/den Leuchtmittel(n) angeordneten Reflektoren so ausgebildet sind, daß diese auf der Decke als störende Schatten abgebildet werden.Luminaires of this type have already become known, which can be attached to ceilings or suspended. A disadvantage of all these lamps is that the two reflectors arranged above the lamp (s) are designed in such a way that they are depicted on the ceiling as disturbing shadows.

Einerseits soll durch die Ausgestaltung dieser Leuchten eine ausreichende Beleuchtungsstärke zur Verfügung gestellt werden und andererseits bringt die bisherige Ausgestaltung der Leuchten, insbesondere der-Reflektoren, den Nachteil mit sich, daß diese oft erhebliche Schatten werfen.On the one hand, by designing these lights sufficient illuminance is made available and, on the other hand, the previous design of the lights, in particular the reflectors, has the disadvantage that they often cast considerable shadows.

Dies trifft auch für die Leuchte entsprechend der US 2,202,266 zu. Bei diesem Vorschlag schließen V-förmig profilierte Reflektorwandungen in einem rechten Winkel an die Decke an. Der dadurch entstehende sprungförmige oder treppenförmige Absatz führt zu einer Schattenbildung an der Decke.This also applies to the lamp according to US 2,202,266. In this proposal, V-shaped reflector walls connect to the ceiling at a right angle. The resulting jump-like or stair-shaped heel creates a shadow on the ceiling.

In der US 5,097,401 handelt es sich um eine Wandleuchte die mit einer Reflektorwanne ausgebildet ist, und das in der Reflektorwanne erzeugte Licht wird in den Raum abgestrahlt. Diese Wandleuchte erzeugt ein reines indirektes Licht, es tritt also praktisch keine Schattenbildung auf.In US 5,097,401 it is a wall lamp which is designed with a reflector trough, and the light generated in the reflector trough is emitted into the room. This wall lamp creates a pure indirect light, so there is practically no shadow formation.

Aber es ist mit dieser Leuchte nicht möglich, die zuvor angesprochene Lichtwirkung zu erzielen, da die Leuchtdichten aller Reflektoren für einen Betrachter auch nicht annähernd gleich groß sind.But with this luminaire it is not possible to achieve the previously mentioned lighting effect, since the luminance of all reflectors are not nearly the same for a viewer.

Wird der Reflektorkorb teildurchlässig für das Licht ausgeführt, geht ein Teil des Lichtes durch diesen Reflektor hindurch, wird bevorzugt gestreut, und somit bleibt die Leuchtdichte unter dem Wert der/des verwendeten Leuchtmittel(s) und verhindert so die Blendung eines Betrachters.If the reflector basket is made partially transparent to the light, part of the light passes through this reflector, is preferably scattered, and thus the luminance remains below the value of the illuminant (s) used and thus prevents glare to an observer.

Aufgabe der Erfindung ist es, eine Leuchte der eingangs genannten Art so auszubilden, daß diese unmittelbar auf Decken angebaut werden können und die angenehme Lichtwirkung erhalten bleibt, ohne störende Schatten zu bilden. Weiters soll diese Leuchte auch in Räumen mit Bildschirmarbeitsplätzen eingesetzt werden können.The object of the invention is to design a lamp of the type mentioned in such a way that it can be attached directly to ceilings and the pleasant lighting effect is maintained without forming disturbing shadows. Furthermore, this luminaire should also be able to be used in rooms with VDU workstations.

Zur Lösung der gestellten Aufgabe ist die Erfindung durch die technische Lehre des Anspruches 1 gekennzeichnet.To achieve the object, the invention is characterized by the technical teaching of claim 1.

Wesentliches Merkmal der Erfindung ist, daß V-förmig profilierte Reflektorflächen in der Stirnansicht etwa ein vogelschwingenartiges Profil aufweisen, wobei sie sich mit ihren äußeren Längsstirnkanten bis in die Nähe von Deckenelementen erstrecken, an denen die Leuchte derart befestigt ist, daß sich der Übergangsbereich der Reflektorflächen im Bereich der äußeren Längsstirnkanten tangential an die Fläche der Deckenelemente anschmiegt. Um eine Schattenbildung zu vermeiden ist es dabei wichtig, daß die außen liegende Längsstirnkante sehr nahe an den Deckenelementen zu liegen kommt. Die tangentiale Annäherung des V-förmig profilierten Reflektors an die Decke muß stufenlos, d.h. ohne treppenförmigen Absatz bei der Längsstirnkante erfolgen. Die tangentiale Anschmiegung des Übergangsbereiches der Reflektorflächen im Bereich der äußeren Längsstirnkante an die Deckenelemente macht außerdem die Einhaltung einer gleichbleibenden Höhe der Längsstirnkante unnötig.An essential feature of the invention is that the V-shaped profiled reflector surfaces have approximately a bird's wing-like profile in the front view, their outer longitudinal front edges extending into the vicinity of ceiling elements to which the lamp is fastened in such a way that the transition region of the reflector surfaces clings tangentially to the surface of the ceiling elements in the area of the outer longitudinal end edges. In order to avoid shadows, it is important that the outer longitudinal end edge comes very close to the ceiling elements. The tangential approach of the V-shaped reflector to the ceiling must be stepless, i.e. without step-like heel at the long edge. The tangential nestling of the transition area of the reflector surfaces in the area of the outer longitudinal end edge to the ceiling elements also makes it unnecessary to maintain a constant height of the longitudinal end edge.

Wegen der V-förmigen vogelschwingenartig ausgebildeten Formgebung der Reflektorflächen ist es nun erstmals möglich, die Leuchte unmittelbar auf einer Decke zu befestigen, weil die äußeren Längsstirnkanten der Reflektorflächen an der Decke bevorzugt anliegen.Because of the V-shaped shape of the wing shaped like a bird's wing, it is now possible for the first time to mount the lamp directly on a ceiling, because the outer longitudinal end edges of the reflector areas lie against the ceiling.

Im wesentlichen sind die erfindungsgemäßen Reflektorflächen also konkav gewölbt.Essentially, the reflector surfaces according to the invention are therefore concavely curved.

Ein vorteilhafter Effekt der Erfindung ist es, daß eine Leuchte mit den erfindungsgemäß ausgebildeten Reflektoren harmonisch an der Decke integriert ist. Dies verstärkt die angenehme, ruhige, tageslichtähnliche Lichtwirkung der Leuchte.An advantageous effect of the invention is that a lamp with the reflectors designed according to the invention is integrated harmoniously on the ceiling. This enhances the pleasant, calm, daylight-like lighting effect of the lamp.

Durch die erfindungsgemäße Ausgestaltung der Reflektorkontur erfolgt auch eine Aufhellung der Decke und damit eine Verbesserung des Wirkungsgrades. (Lichtstrahlen treffen nicht nur auf den Reflektoren, sondern auch direkt auf die Decke).The inventive design of the reflector contour also lightens the ceiling and thus improves the efficiency. (Light rays not only hit the reflectors, but also directly on the ceiling).

Für die Ausbildung der Reflektorflächen gibt es mehrere Möglichkeiten, die sämtlich von dem Erfindungsgedanken der Erfindung umfaßt sein sollen.There are several options for the formation of the reflector surfaces, all of which are intended to be encompassed by the inventive concept of the invention.

In einer ersten Ausführungsform ist vorgesehen, daß die Reflektorflächen stetig gekrümmt ausgebildet sind und sich unter stetiger Krümmung von den inneren Längsstirnkanten ausgehend bis zu den äußeren, sich an den Deckenelementen anlegenden Längsstirnkanten erstrecken.In a first embodiment, it is provided that the reflector surfaces are designed to be continuously curved and to extend from the inner longitudinal end edges to the outer longitudinal end edges lying against the ceiling elements with a constant curvature.

In einer weiteren Ausgestaltung sind die Reflektorflächen stetig gekrümmt und können in der Nähe des Reflektorkorbes eine relativ steile Krümmung aufweisen, die unter Überwindung eines relativ kleinen Radius in eine Kurve geringerer Krümmung übergeht.In a further embodiment, the reflector surfaces are continuously curved and can have a relatively steep curvature in the vicinity of the reflector cage, which transitions into a curve of lesser curvature while overcoming a relatively small radius.

Ebenfalls kann der Übergangsbereich der deckennahen Längsstirnkanten in die Deckenelemente unterschiedlich ausgebildet sein.Likewise, the transition area of the longitudinal end edges near the ceiling to the ceiling elements can be designed differently.

In einer ersten Ausgestaltung ist vorgesehen, daß sich die Tangente an die Reflektorflächen im deckennahen Bereich an die Deckenfläche anschmiegt, d. h., es erfolgt ein tangentialer Übergang der Reflektorfläche in die Deckenfläche.In a first embodiment it is provided that the tangent to the reflector surfaces in the area close to the ceiling conforms to the ceiling surface, i. that is, there is a tangential transition of the reflector surface into the ceiling surface.

In einer anderen Ausgestaltung ist es vorgesehen, daß die Tangente an die Reflektorflächen im deckennahen Bereich einen Winkel zur Deckenfläche selbst bildet.In another embodiment, it is provided that the tangent to the reflector surfaces in the area near the ceiling forms an angle to the ceiling surface itself.

Im folgenden wird die Erfindung anhand von mehrere Ausführungswege darstellenden Zeichnungen näher erläutert. Hierbei gehen aus den Zeichnungen und ihrer Beschreibung weitere wesentliche Merkmale und Vorteile der Erfindung hervor.In the following, the invention will be explained in more detail with reference to drawings showing several possible embodiments. Further essential features and advantages of the invention emerge from the drawings and their description.

Es zeigen:

Figur 1:
eine erfindungsgemäße Leuchte in perspektivischer Ansicht;
Figur 2:
die Leuchte gemäß Figur 1 im Aufriß;
Figur 3:
eine Darstellung ähnlich wie Figur 2 mit einer abgewandelten Leuchte;
Figur 4:
eine weitere Ausgestaltung einer Leuchte im Vergleich zu Figur 3;
Figur 5:
eine weitere Ausgestaltung der Leuchte im Vergleich zu Figur 1.
Show it:
Figure 1:
a lamp according to the invention in a perspective view;
Figure 2:
the lamp of Figure 1 in elevation;
Figure 3:
a representation similar to Figure 2 with a modified lamp;
Figure 4:
a further embodiment of a lamp compared to Figure 3;
Figure 5:
a further embodiment of the lamp in comparison to Figure 1.

In einer ersten Ausgestaltung der Leuchte nach den Figuren 1 und 2 besteht diese im wesentlichen aus einem Reflektorkorb 2, der stirnseitig durch Korbstirnteile 1,1' abgedeckt ist. Der Reflektorkorb 2 ist vorzugsweise aus Lochblech gefertigt und mit einer matten oder opalen Folie hinterlegt, und kann lichtdurchlässig, teillichtdurchlässig oder lichtundurchlässig ausgebildet sein.In a first embodiment of the lamp according to FIGS. 1 and 2, it essentially consists of a reflector basket 2, which is covered on the end face by basket front parts 1, 1 '. The reflector basket 2 is preferably made of perforated sheet metal and backed with a matt or opal film, and can be designed to be translucent, partially translucent or opaque.

Der Reflektorkorb 2 ist an einer Montageschiene 3 befestigt, wobei die Lampenbetriebsgeräte entweder in einem Wannenteil oder vorteilhaft auf der Montageschiene angebracht werden können.The reflector basket 2 is fastened to a mounting rail 3, the lamp operating devices being able to be attached either in a tub part or advantageously on the mounting rail.

Die Fassungen für die eine oder mehrere Lampen werden am jeweiligen Korbstirnteil 1,1' befestigt. Somit werden die Leuchtmittel vom Reflektorkorb 2 überdeckt.The sockets for the one or more lamps are attached to the respective front part 1.1 'of the basket. The lamps are thus covered by the reflector basket 2.

Der Reflektorkorb 2 wird vorteilhaft mittels der Montageschiene 3 an der Leuchte befestigt, wobei die Montageschiene 3 einen Teil der erfindungsgemäßen Reflektorflächen 4,4' bildet.The reflector basket 2 is advantageously fastened to the lamp by means of the mounting rail 3, the mounting rail 3 forming part of the reflector surfaces 4, 4 'according to the invention.

Das Wannenteil 12 wird üblicherweise auf die Decke geschraubt, wobei die Decke im Ausführungsbeispiel aus plattenförmigen Deckenelementen 5-11 ausgebildet ist.The tub part 12 is usually screwed onto the ceiling, the ceiling in the exemplary embodiment being formed from plate-shaped ceiling elements 5-11.

Die Reflektorflächen 4,4' erstrecken sich mit ihren inneren Längsstirnkanten 13 oberhalb des Reflektorkorbes 2 und sind insoweit spiegelsymmetrisch zur Längsmittenachse des Reflektorkorbes 2.The reflector surfaces 4, 4 'extend with their inner longitudinal end edges 13 above the reflector basket 2 and are, in this respect, mirror-symmetrical to the longitudinal center axis of the reflector basket 2.

Die Reflektorflächen 4,4', sowie auch die Reflektorflächen 15 und 16 gemäß den Figuren 3 und 4 sind etwa konkav gewölbt und bilden in der Stirnansicht eine etwa V-förmige Profilierung in der Art einer Vogelschwinge.The reflector surfaces 4, 4 'and also the reflector surfaces 15 and 16 according to FIGS. 3 and 4 are curved approximately concavely and form an approximately V-shaped profile in the manner of a bird's wing in the end view.

Im gezeigten Ausführungsbeispiel nach den Figuren 1 und 2 schmiegt sich die äußere Längsstirnkante 14 jeder Reflektorfläche 4,4' übergangslos an die Fläche der Deckenelemente 5-11 an. D. h., eine Tangente 22 in diesem Bereich an der Reflektorfläche 4 ist parallel zu der Fläche der Deckenelemente 5 selbst.In the exemplary embodiment shown in FIGS. 1 and 2, the outer longitudinal end edge 14 of each reflector surface 4, 4 'nestles seamlessly against the surface of the ceiling elements 5-11. That is, a tangent 22 in this area on the reflector surface 4 is parallel to the surface of the ceiling elements 5 themselves.

In Figur 3 ist dargestellt, daß statt der relativ starken Krümmung der Reflektorflächen 4,4' in den Figuren 1 und 2 auch eine steilere Krümmung 20 für die Reflektorflächen 16 vorgesehen sein kann, wobei der Übergangsbereich 21 einen Winkel in Richtung auf die Fläche der Deckenelemente bildet. D. h., die Tangenete 22 an dem deckennahen Bereich der Reflektorflächen 16 bildet einen Winkel 23 zu der Fläche der Deckenelemente 5-11.3 shows that instead of the relatively strong curvature of the reflector surfaces 4, 4 'in FIGS. 1 and 2, a steeper curvature 20 can also be provided for the reflector surfaces 16, the transition region 21 making an angle in the direction of the surface of the ceiling elements forms. In other words, the Tangenete 22 at the region of the reflector surfaces 16 near the ceiling forms an angle 23 to the surface of the ceiling elements 5-11.

In Figur 4 ist dargestellt, daß die Reflektorflächen 15 auch unstetig gekrümmt sein können, d. h., ausgehend von den inneren Längsstirnkanten bilden die Reflektorflächen 15 zunächst eine relativ steile Krümmung 17, die unter Überwindung eines Radius im Bereich des Knickes 19 in eine flachere Krümmung 18 übergeht, die entweder tangential gemäß dem Ausführungsbeispiel nach Figur 2 oder unter Bildung eines Winkels gemäß dem Ausführungsbeispiel nach Figur 3 in die Deckenfläche übergehen kann.In Figure 4 it is shown that the reflector surfaces 15 can also be discontinuously curved, that is, starting from the inner longitudinal end edges, the reflector surfaces 15 initially form a relatively steep curvature 17 which, while overcoming a radius in the region of the bend 19, changes into a flatter curvature 18 which either tangentially according to the embodiment of Figure 2 or forming an angle according to the embodiment of Figure 3 can pass into the ceiling area.

Der Übergang von der Reflektorkontur zur Decke muß nicht so weich erfolgen wie in Figur 1 und 2, sondern er kann auch sprunghaft sein bzw. der Reflektor kann geknickt sein (Figur 3 und 4). Dies steht aber im Gegensatz zur erwünschten angenehmen Lichtwirkung. Um diese Lichtwirkung zu erreichen versucht man nämlich alle Reflektoren (auch den Reflektorkorb) so auzugestalten, daß an allen lichtabstrahlenden Punkten die Leuchtdichte gleich hoch ist. Denkbar sind aber besonders geformte Reflektoren zur Erzielung besonderer Beleuchtungseffekte.The transition from the reflector contour to the ceiling does not have to be as smooth as in FIGS. 1 and 2, but it can also be erratic or the reflector can be kinked (FIGS. 3 and 4). However, this is in contrast to the desired pleasant lighting effect. In order to achieve this lighting effect, one tries to design all reflectors (including the reflector basket) in such a way that the luminance is the same at all light-emitting points. However, specially shaped reflectors are conceivable to achieve special lighting effects.

Figur 5 zeigt die Leuchte in einer Ausführungsform mit runder (ovaler) Grundfläche, welche gegenüber einer Rechteckform den Vorteil hat, daß runde Leuchten unabhängig von der Raumform in architektonisch ansprechender Form eingesetzt werden können.Figure 5 shows the lamp in an embodiment with a round (oval) base, which has the advantage over a rectangular shape that round lights can be used in an architecturally appealing form regardless of the shape of the room.

Die erfindungsgemäße Leuchte kann auch als Wandleuchte eingesetzt werden - dafür werden vorzugsweise kürzere Leuchtmittel verwendet (z. B. 18 W Leuchtstofflampe mit 590 mm Länge oder Kompaktleuchtstofflampen 36 W mit 415 mm bzw. 40 W oder 55 W mit 535 mm Länge).The luminaire according to the invention can also be used as a wall luminaire - shorter illuminants are preferably used for this (e.g. 18 W fluorescent lamp with 590 mm length or compact fluorescent lamps 36 W with 415 mm or 40 W or 55 W with 535 mm length).

ZEICHNUNGSLEGENDEDRAWING LEGEND

11
Korbstirnteil 1'Basket front 1 '
22nd
ReflektorkorbReflector basket
33rd
MontageschieneMounting rail
44th
Reflektorfläche 4'Reflector surface 4 '
55
DeckenelementCeiling element
66
DeckenelementCeiling element
77
DeckenelementCeiling element
88th
DeckenelementCeiling element
99
DeckenelenentCeiling element
1010th
DeckenelementCeiling element
1111
DeckenelementCeiling element
1212th
WannenteilTub part
1313
Längsstirnkante (innen)Longitudinal front edge (inside)
1414
Längsstirnkante (außen)Longitudinal front edge (outside)
1515
ReflektorflächeReflector surface
1616
ReflektorflächeReflector surface
1717th
Krümmungcurvature
1818th
Krümmungcurvature
1919th
KnickKink
2020th
Krümmungcurvature
2121
ÜbergangsbereichTransition area
2222
Tangentetangent

Claims (6)

  1. A light with at least one elongated means of illumination which is arranged in a reflector cage, which is arranged beneath at least two reflector surfaces which are curved in an arched shape and are arranged substantially in mirror symmetry to each other, which reflector surfaces extend with their inner longitudinal front edges above the reflector cage and the outer longitudinal front edges of which are arranged outside the reflector cage, characterised in that reflector surfaces (4,4'), which are profiled in a V-shape, extend with their outer longitudinal front edges (14) into the vicinity of ceiling elements (5-11), on which the light is secured, in which the transition region (21) of the reflector surfaces (4,4') in the region of the outer longitudinal front edges (14) fits closely tangentially against the surface of the ceiling elements (5-11).
  2. A light with at least one elongated means of illumination which is arranged in a reflector cage, which is arranged beneath at least two reflector surfaces which are curved in an arched shape and are arranged substantially in mirror symmetry to each other, which reflector surfaces extend with their inner longitudinal front edges above the reflector cage, and the outer longitudinal front edges of which are arranged outside the reflector cage, characterised in that the tangent (22) of the reflector surfaces (16) in the region of the outer longitudinal front edges (14) intersects the surface of the ceiling elements (5-11) at an acute angle (23).
  3. A light according to Claims 1 and 2, characterised in that the reflector surfaces (4, 15, 16) are arched in a concave form.
  4. A light according to Claim 1 to 3, characterised in that the reflector surfaces (4, 15, 16) are covered on the front side by a cradle piece (12) which corresponds in its shaping to the profile of the reflector surfaces (4, 15, 16).
  5. A light according to Claim 1 to 4,
    characterised in that the light is secured directly to a ceiling and the reflector surfaces (4, 15, 16) lie against the ceiling (ceiling elements 5 - 11).
  6. A light according to Claim 1 to 5,
    characterised in that the mounting rail (3) on which the reflector cage (2) is secured is part of the reflector surfaces (4, 15, 16).
EP93923470A 1992-10-21 1993-10-15 Light fitting with oblong lighting means and reflectors Expired - Lifetime EP0665936B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9214199U 1992-10-21
DE9214199U DE9214199U1 (en) 1992-10-21 1992-10-21 Luminaire with elongated illuminant and reflectors
PCT/EP1993/002847 WO1994009311A1 (en) 1992-10-21 1993-10-15 Lamps with oblong lighting means and reflectors

Publications (2)

Publication Number Publication Date
EP0665936A1 EP0665936A1 (en) 1995-08-09
EP0665936B1 true EP0665936B1 (en) 1996-09-04

Family

ID=6885046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93923470A Expired - Lifetime EP0665936B1 (en) 1992-10-21 1993-10-15 Light fitting with oblong lighting means and reflectors

Country Status (9)

Country Link
US (1) US5521801A (en)
EP (1) EP0665936B1 (en)
AT (1) ATE142319T1 (en)
DE (2) DE9214199U1 (en)
DK (1) DK0665936T3 (en)
ES (1) ES2093986T3 (en)
FI (1) FI107757B (en)
NO (1) NO319133B1 (en)
WO (1) WO1994009311A1 (en)

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DE102007059607A1 (en) * 2007-12-11 2009-06-18 Bartenbach, Christian, Ing. Wall and / or ceiling light
DE102013021308A1 (en) * 2013-12-19 2015-06-25 Erco Gmbh lamp

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DE29519708U1 (en) * 1995-12-12 1997-04-10 Zumtobel Licht Gmbh, Dornbirn Luminaire with at least one elongated lamp
DE19620209A1 (en) * 1996-05-20 1997-11-27 Zumtobel Licht Luminaire with a profiled base body as a support for at least one lamp
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US10253948B1 (en) 2017-03-27 2019-04-09 EcoSense Lighting, Inc. Lighting systems having multiple edge-lit lightguide panels
US11635188B2 (en) 2017-03-27 2023-04-25 Korrus, Inc. Lighting systems generating visible-light emissions for dynamically emulating sky colors

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DE102007059607A1 (en) * 2007-12-11 2009-06-18 Bartenbach, Christian, Ing. Wall and / or ceiling light
DE102013021308A1 (en) * 2013-12-19 2015-06-25 Erco Gmbh lamp
DE102013021308B4 (en) * 2013-12-19 2017-08-31 Erco Gmbh lamp

Also Published As

Publication number Publication date
US5521801A (en) 1996-05-28
DE59303682D1 (en) 1996-10-10
ATE142319T1 (en) 1996-09-15
NO319133B1 (en) 2005-06-20
WO1994009311A1 (en) 1994-04-28
FI951038A (en) 1995-04-20
EP0665936A1 (en) 1995-08-09
FI951038A0 (en) 1995-03-07
DK0665936T3 (en) 1997-01-20
NO951450D0 (en) 1995-04-18
NO951450L (en) 1995-04-21
ES2093986T3 (en) 1997-01-01
DE9214199U1 (en) 1993-11-25
FI107757B (en) 2001-09-28

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